The sale comes a week after the company reported disappointing half-year results, with profits down 46% to £11.6m after heavy losses in Switzerland and Germany. Revenues were up 16% to £131m.

Both directors declined to comment but it is understood Wray is planning on re-investing his windfall into Saracens.

Hemsley, who has been with the company for 15 years, five as chairman, is thought to have sold his shares due to high demand for the stock in the US. This was also thought to have been the reason for a similar share sale earlier this year.

In February, Hemsley sold 1.8m shares, taking home £9.3m. Wray also sold 5.7m shares at the same time, raising £29.6m.

Shares in Domino's Pizza fell 2.4% to £5.75 but performed strongly this year, hitting an all-time high of £7.08 in May.

Last week, the company also revealed it took a £6.7m hit on its German business when it was forced to admit its managed stores were underperforming.

Bosses spent the money on turning the operation into a franchise-only business and revealed it would not expect to turn a profit in the UK until 2016 or 2017, up to two years later than previously thought.